CALYPSO = The big brother eyes...

Calypso is the electronic ticketing standard which defines the secured dialogue between cards and terminal.
It was developed by a group of European partners from the cities of Brussels in Belgium, Lisbon in Portugal, Konstanz in Germany, Paris in France and
Venice in Italy.

Sorry, I didn't explain everything, and if you don't live in an european metropole with a big transports network, you don't know. This system
received the Big-Brother Award because they can track you and know everywhere you go with that. They say that they use these datas only for
"statistics"...

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